hydrogen; 4 rhodium on alumina; 5-palladium/activated carbon in water; isopropyl alcohol T=120°C; P=62819.5 Torr; 4 h;

1: 1,1-bis(trifluoromethyl)-2-bromoethanol With n-butyllithium in diethyl ether; hexane T=-78°C; 2: 3,3,3-trifluoro-2-(trifluoromethyl)-1,2-propenoxide in diethyl ether; hexane T=-78 - -10°C; 2 h;